Check and release valve for well swabs



F. w. LEIDEGKER.

CHECK AND RELEASE VALVE FOR WELL SWABS.

APPLICATION FILED JUNE 5,1920.

1,405,043,, Patented Jan. 31,1922.

wmm E w Elma/1 o UNITED. sT rE FRANK w. Ln I'nncKEn, or OKMULGEE, oKL Ho'MA; f; v

orrnox AND nnnnesn AL E roe WELL swans.

T0 (ZZZw/wmit may concern."

Be it known that I, FRANK W. Lnmnorinn, a citizen of the United States, residing at Okmulgee, in the county of Okmulgee and State of Oklahoma have invented a new and useful Check and Release Valve for Well Swabs, of which the followingis a specification. I i I I The present invention. relates to relief valves to be secured at the lower end of a swab employed in drilling 'oil wells, the swab being designed for removing the fluid from the well.

The primary object of the inventionris to provide a relief valve'which will'prevent the lifting'of a greater quantity of fluid With the foregoing and other objectsin view which will appear as the descriptlon.

proceeds, the inventionresides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing Figure 1 illustrates a front elevational view of a relief valve constructed in accordance with the present invention. I

Figure 2 illustrates a longitudinal sectional view through the relief valve.

Referring to the drawingin detail, the

reference character 5 designates the valve casing which is substantially tubular in formation, and is provided with an inwardly extending flange 6, formed substantially intermediate the endsthereof, the flange being of a diameter to provide an opening 7 for the purposes to be hereinafterrmore fully described.

Formed within the upper extremity of the casing 5 are the threads 8, which cooperate with the usual threads disposed at the end of a swab, for securing the valve casing 1920. serial 286,316.?

thereto, so that the with the swab.

valve c sing vvillf Specification of Letters Patent u/Patentedj-Jan 31*1922: npplication filcd 3111165 I i J" a A later l arena opening is; ra -a in thejca sing 5, which opening accommo;

dates'the plug 1O,tl 1jat is, providedlwith a; plurality of 'openingsfind'icated at 11, for

providing communication between the interior of the casing and: the i'atmosphere," so that fluid pass into the 15, through. said openlngs, the openings being'controlled however by means of'the'l circular valve; 12 that has connectioii' with the valve stem13 operating in the Qpening,14.', formed in; the plug'10;

This valve 12, is preferably circular in formation and is adapted to seat against the '7' shoulder 15, formed onflthel inner edge of the plug 10, the inner extremity'ofjthe stein 13 supporting the coiled spring jlfi, which has one endthereof' disposed in cutout portion 17 formed interiorly of the casing 5, the opposite end of said coiled spring engaging one surface of the valve 12, for normally seating the valve 12. I

A plug 18 is threaded into the lower por tion of the casing 5, and this plug is provided with a central opening to accommoa date the valve stem 19, which has the disk valve 20 at the upper extremity thereof, which disk valve is held in engagement with the flange 6, by means of the coiled spring 21 but is. adapted to move out of engagement with the flange, when the weight 'ofthe fluid, within the casing overcomes the tension of the coiled spring 21, thus permitting the fluid within the casing 5 to exhaust through the openings 22 until the tension of the coiled spring 21 is sufiicient to seat the valve member 20.

From the foregoing it is obvious that by v movement of the plugs 10 or 18, the valve members which are supported thereby, may be adjusted to cause the operation thereof under various weights of fluid.

In the operationof the device it is obvious that when the swab carrying the relief valve, v is dropped into a well, the fluid will flow into the casing until the desired amount has entered above the swab Any excess of fluid acts against the diskvalve 20, to unseat the same and permit fluid to exhaust through the openings 22 which are disposed above the discharge. 1 p Having thus described the invention, what is claimed as new is.:. i f

'1. A check and release valve for Well swabs comprising a. casing, means for dividin'gthe easing into an upper compartment a valve for controlling the passage of fluid into'the lower compartment, and said cas ing having openingsto permit fluid to pass from the lower compartment.

3. check and release valve for well swabs, comprising a casing including an upper compartment and a lower compartment, said compartments being in communication, means for controlling the passage of fluid into the upper compartment, an adjustable valve for controlling the passage of fluid from the upper compartment to the lower compartment, and said casing having openings to permit the passage offluid from thevlower compartment. 7 I

check and release valve 7 for well swabs comprising a casing including an upper compartment and a lower compart ment, a valve providinga movable bottom for the swab, means for adjusting the valve ment, and said casing having openings to permit fluid topass from the lower compartment. r V

5. A check and release valve for well swabs comprising a casing, said casing having internal threadsat its-respectiveends, a flange for dividing the casing into an upper and lower compartment, 'said'casing having a'lateral threaded opening,' a plug disposed-in the opening and having a plurality of inlet openings, a spring pressed valve for controlling the passage of fluid into the upper compartment, a movable valve forming the bottom o fthe upper compartment, and said casing having openings to permit the passage of fluid from'the lower compartment. Y 7

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in thepresence of two witnesses.

I v FRANK W;LEID EOKER. v Witnesses: 7 9 '7 W. W. JENKINS, MoDo GAL. 

